baber/WOPTO huggingface dataset:
Patent GB-695009-A (GB)
Title: Improvements in and relating to rock drilling apparatus
IPC: B23Q1/00
Filed: 1950-06-19
Abstract: 695,009. Percussive drills. HOLMAN BROS., Ltd., HOLMAN, A. T., ORAM, M., and JAMES, E. B. Dec. 27, 1950 [June 19, 1950], No. 20471/52. Divided out of 694,963. Class 124. A rock drill for dry drilling has a straight tube located between an outlet at the back of the drill and an orifice in the anvil and is supported at one end in the anvil and at the other in a sleeve passing through the valve chest so that dust passes from the drill bit through a hollow steel and the tube to the back of the drill. As shown, a straight tube 3a is supported at one end in an anvil 3b and at the other in a sleeve 3c which may be so fitted in an outlet passage 8 at the back of the drill to form an ejector. The internal diameter of the tube 3a may be greater than the diameter of the hole in the steel. Specification 694,963 is referred to.
Patent GB-1375957-A (GB)
Title: Electrical machines
IPC: H02K3/28
Filed: 1973-04-30
Abstract: 1375957 Winding layouts SIEMENS AG 30 April 1973 [28 April 1972] 20516/73 Heading H2A In an electrical machine, e.g. a synchronous generator, comprising a chorded (fractional pitch), two layer multi-phase winding with each phase having a first coil and a second coil of fewer turns, the winding is arranged in slots such that each of the two layers in each slot is occupied either by a single first type coil, or by two second type coils of different phases. In the two-thirds chorded six slots per pole arrangements of Figs. 1a 1b wherein the first type coils have twice as many turns as the second type but are only half as numerous, the winding is arranged with alternate slots occupied by two first type coils or four second type coils, Fig. la, corresponding to concentric coils and Fig. 1b, to equal width coils. In the eight-ninths chorded nine slots per pole arrangement of Fig. 2a<SP>1</SP>, slots are arranged to have either two first type coils, or one first and two second type coils; other arrangements are described with reference to Figs. 2b<SP>1</SP>, 2c<SP>1</SP>, 2d<SP>1</SP> and 3a (not shown). The coils may all be continuously wound, i.e. without joints, as described with reference to Fig. 4 (not shown).
Patent GB-275974-A (GB)
Title: Improvements in chucks
IPC: B23B31/12
Filed: 1927-08-03
Abstract: 275,974. Albertson & Co., (Assignees of Albertson, F. 0.). Aug. 11, 1926, [Convention date]. Chucks.-A chuck, particularly designed for gripping valve stems in valve grinding machines but applicable generally, comprises a hollow body 10 having radial recesses 18 for receiving the jaws 19 and a bevelled screw ring 11 provided with cylindrical portions 23, 24 at each side of the screw thread coacting with cylindrical portions on the body for accurately centring the ring and the article gripped. The article is further centred by a plug 13 having a conically recessed end 16 and adjustably secured within the tubular shank 12 by a set-screw 14 impinging on a copper plug 15. A murled end 17 on the plug 13 facilitates its manipulation so that it may act as an end stop for the article held. The radial recesses 18 are narrower near the centre of the chuck to retain the jaws, and the latter have spherical ends 20 and frusto-conical bases 21 so that the side nearest the axis of the chuck is parallel thereto for gripping cylindrical articles. An annular groove 22 in the jaws facilitates their grip. The shank 12 m ay be pressed into a bore in the body as shown, or may be formed integrally therewith.
Patent GB-1304546-A (GB)
IPC: F02D27/00
Filed: 1970-04-29
Abstract: 1304546 Reversing HUSQVARNA VAPENFABRIKS AB 29 April 1970 [30 April 1969] 20540/70 Heading F1K In a reversible internal-combustion engine having an electrical ignition system and having externally accessible turning means 4 capable of being connected with the crank-shaft of the engine for turning the engine there are provided double ignition spark triggering means (not shown) of which one gives an ignition position on one side of the top dead centre position and the other an ignition position situated substantially symmetrically with respect to the firstmentioned position on the other side of the top dead centre position. Indicating means 5, 6 is associated with the turning means for indicating at least two different piston positions one on either side of the top dead centre position and a starting device 7 is provided for initiating the starting movement of the motor in either of the directions of rotation thereof. The triggering means comprises two magnetic pole shoes on the fly wheel each actuating a triggering circuit in an ignition system.
Patent GB-1060328-A (GB)
Title: Alloy diffusion process
IPC: C23C10/22
Filed: 1965-05-14
Abstract: Ferrous articles e.g. electric contacts, and spinnesets are coated with a ferrous platinum alloy by contacting with a molten mass comprising calcium, calcium chloride, and platinum at a temperature over 800 DEG C.  Diluents, e.g. copper, lead, tin, and calcium nitride may be added.  The articles are immersed in an agitated bath under an argon atmosphere.
Patent GB-1487118-A (GB)
Title: Rotor for a rotary internal combustion wankel engine
IPC: F02B55/02
Filed: 1975-05-15
Abstract: 1487118 Wankel engines; rotor profiles  NISSAN MOTOR CO Ltd 15 May 1975 [20 May 1974] 20564/75 Heading F1F The profile of a rotor 10 for an I.C. Wankel engine is defined by a basic profile a which is parallel to and inwardly displaced by a distance equal to the projecting length of an apex seal from, the envelope curve of the two lobed epitrochoidal inner peripheral surface of the engine and is such that when the two profiles are superimposed the apex regions of the rotor lie within the basic profile a and the central regions of the rotor's flanks intersects the basic profile a. The apices of the rotor 10 intersect a third profile b which has a radius R and a rotor having this profile b would not contact the epitrochoidal inner peripheral surface of the engine even if its apices did not follow the ideal path of motion due to mechanical and constructional inaccuracies. The maximum distance m between the profiles a and b is preferably between 0.01 R and 0.0001R.
Patent GB-148773-A (GB)
Title: Improvements in and relating to apparatus for the destructive distillation of mineral and organic substances
IPC: C10B1/04
Filed: 1920-07-10
Abstract: 148,773. Soc. Anon. Fours SpÚciaux. June 30, 1919, [Convention date]. Retort furnaces; discharging.-In a vertical retort for the continuous distillation of coal, &c. the central part B is surrounded by a heating-flue F, and the lower part C is provided with a conical discharging-screw F mounted in a rotary waterpan.
Patent GB-597138-A (GB)
Title: Improvements in or relating to glass to metal seals
IPC: H01J9/32
Filed: 1945-08-10
Abstract: 597,138. Metal to - glass seals. GENERAL ELECTRIC CO., Ltd., and SOWTER, A. B. Aug. 10, 1945, No. 20626. [Class 36] Metal-to-glass seals for use in electric lamps and like devices (other than thermionic valves) are formed by coating a metal rod &c. with an enamel slip which is then fired on to the metal by passing a heating-current through the rod. The enamel slip may consist of a water-suspension (preferably slightly acidic) of alkali-free borosilicate glass. An apparatus for carrying out the process comprises a base 2 for holding the lower end of a coated tungsten rod 3, a spring-pressed cup-shaped electrode 6 arranged to contact the upper end of the rod and plate electrodes 12 for contacting the lower end of the rod, the electrodes 6, 12 being successively moved into operative position. The electrode 6 is carried by a holder 7 insulated from a block 10 to which vertical reciprocations are given to position the electrode. The electrodes 12 are carried by the lower ends of rods 14 which are connected to the short arms of a pair of L-shaped levers 11 pivoted at 13. The upper ends of the long arms are normally closed by a spring (not shown). In the downward travel of the holder 7, and after abutment of the electrode 6 with the rod 3, a wedge-bar 16 is forced between the upper ends of the levers 11 swinging the electrodes 12 into engagement with the rod to close the heating-circuit. Inert gas such as dry hydrogen may be fed; through an inlet 9, to a shroud 8 surrounding the rod 3. In a semi-automatic arrangement (not shown), a series of rods may be fed successively from a rotary holder to the coating and firing positions.
Patent GB-895426-A (GB)
Title: Improvements in and relating to shell moulds and cores
Inventor: HORNIG VICTOR
IPC: B22C23/00
Filed: 1959-06-17
Abstract: 895,426. Moulding-processes. SHELL MOULDING FOUNDRY Ltd. Nov. 4, 1959 [June 17, 1959], No. 20754/59. Class 83 (1). Resin-bonded shell mould parts 13 or cores are shaped externally so as to shape the cast metal, the space bounded by the walls 9 being filled with solid flowable packing material 10. The parts are made by blowing sand-resin mix into a heated two-part pattern box 4, 5 to form the hollow shell 9 which is then filled with e.g. sand, powdered limestone, chalk, or felspar.
Patent GB-809472-A (GB)
Title: Improvements in or relating to locking devices controlled by shock
Inventor: DRIVER DOUGLAS LOUIS ASHTON
IPC: H04M1/04
Filed: 1956-07-06
Abstract: 809,472. Locking mechanism. STANDARD TELEPHONES & CABLES Ltd. July 5,1957 [July 6, 1956L No. 21002/56. Addition to 786,101. Class 80 (3). Improvements in or modifications of the invention in the parent Specification consist in, Fig. 1, supporting the locking member 1 displaceable under shock by the centre coil of a spring 22 which is held at its ends by flanges 35 on eccentrically bored distance pieces 34 for the screws 18 and, Fig. 3, providing a number of separate locking members 44 loaded by springs 46 and co-operating with the disc 8 of rod 9 to lock it under shock.
Patent GB-365570-A (GB)
Title: Oblique rotatable drum for carrying out heat technical processes
Filed: 1930-07-14
Abstract: <PICT:0365570/III/1> Apparatus for evaporating liquids and condensing steam comprises a rotary drum resiliently held between stationary endplates 2, 3. The drum is filled with rings, balls, &c., to the surfaces of which the liquid to be evaporated or the cooling liquid for the steam adheres.
Patent GB-1132234-A (GB)
Title: Improved index strips
Inventor: HYAMS DAVID LEONARD
IPC: B42F17/00
Filed: 1965-05-20
Abstract: 1,132,234. Making index strips. RONEO Ltd. 17 May, 1966 [20 May, 1965], No. 21354/65. Headings B6A and B6E. Index strips for mounting on a panel (Fig. 3) are produced from a band 1 of material such as paper, cardboard, or wood veneer, which will receive typescript, the band having sprocket holes 2 adjacent its opposite edges for engagement on sprocket teeth in an automatic typewriter, and at least one score line 5 each side of the band parallel to and inside the line of holes 2, whereby when the band is typed and separated into index strips 4, the ends of the strips can readily be folded. The band 1 has parallel lines of perforations 3 across it, to facilitate separation into narrow strips 4. The separated index strips 4 are supported on a panel (6, Figs. 3 and 4) which is provided at opposite edges with a channel (7) into which the ends of the strips are tucked after folding about the score lines 5. Several score lines 5 may be provided to enable the ends of the strips 4 to be turned over more than once to provide a thicker end to each strip (Fig. 5).
Patent GB-496512-A (GB)
Title: Improvements in frames for use in making wreaths
IPC: A01G5/02
Filed: 1937-08-05
Abstract: 496,512. Wreaths, funeral crosses, and the like. McKAY, J. A. Aug. 5, 1937, No. 21585. [Class 93] A wire frame for use in making a wreath &c. comprises a number of U-shaped units a, the free ends of the side members b of which are soldered or welded to the next unit in line, and the side members being curved or shaped to form the desired frame. The members b of each unit are concentric, and the cross member d lies along a radius. In a modification, the ends of the members b are turned inwards and are welded to the adjacent member d.
Patent GB-939453-A (GB)
Title: Apparatus for continuous final quenching of heated articles
IPC: C21D1/63
Filed: 1962-06-05
Abstract: 939,453. Quenching. S.A. DU FOUR ELECTRIQUE DELEMONT. June 5, 1962 [June 7, 1961], No. 21622/62. Class 72. [Also in Groups XII and XXVIII] A quenching apparatus for heated articles comprises a quenching bath received in a vessel d and an extraction conduit e forming a closed circuit with the bath, preferably as shown, wherein the articles to be quenched drop into one end e<SP>1</SP>, preferably flared, of the extraction conduit and are conveyed therethrough into a basket f immersed in the bath by circulation of the bath liquid by an auxiliary circuit conduit g through which liquid is abstracted from the bath, e.g. from an overflow sump d<SP>1</SP>, and forced by pump i into the extraction conduit. Initially, such articles as steel parts of clocks and watches may be heated by advancing them through a heating chamber of a furnace a, e.g. on an oscillating feed support plate b towards a discharge shoot c whose end dips into the bath liquid above the end e<SP>1</SP>.
Patent GB-899143-A (GB)
Title: Improvements in and relating to the production of staple fibres
Inventor: JEFFREY GEORGE MALCOLM
IPC: D01F6/18
Filed: 1959-06-24
Abstract: Staple polyacrylonitrile fibres of increased potential shrinkage are produced by stretching a bundle of continuous polyacrylonitrile filaments to a degree sufficient to break the filaments without destroying the cohesion of the bundle, while heating the filaments in a zone.  The heated zone is preferably much narrower parallel to the length of the filaments than the width of the bundle and is preferably at or near to the feed end of the stretching zone.  The bundle may be passed through the nip of a pair of feed rollers to the nip of a second pair of rollers rotating at a higher peripheral speed to stretch the filaments a breaker draft ratio of, for example, 5,0 to 15,0.  The heating elements may be a pair of electrical bar heaters one above and one below the tow which is travelling along a horizontal path, each heater may be partially enclosed in an asbestos box and the filaments may be heated in the short heating zone to a temperature of, for example, 101 DEG  to 172 DEG F.  The filaments are preferably cooled in a second zone after leaving the heating zone, e.g. by a blast of cold air directed on to them.  The cohesive top of staple fibres obtained by breaker drafting of the filaments in the above manner may be forwarded directly to a third pair of rollers which forms the nip entrance to a stuffer box for crimping the fibres. "Potential shrinkage" is defined as the ability of the staple fibres to contract in steam or hot aqueous liquids and is increased by the process of the invention, which also produces fibres of improved uniformity of staple length.  The fibres may be homopolymers of acrylonitrile or copolymers containing at least 80% of acrylonitrile.
Patent GB-318238-A (GB)
Title: Improvements in or relating to films for use in colour photographic processes
IPC: G03B33/00
Filed: 1929-07-15
Abstract: 318,238. Kodak, Ltd., (Assignees of Favour, P.). Aug. 31, 1928, [Convention date] . Colour photography.-To a film sensitive to several colours, or to the leader strip thereof, is attached a filter mask or colour-ratio controller which, when used in conjunction with a standard colour filter having areas which transmit different colours, will adapt the filter to the coloursensitivity of the particular emulsion on the film. Attention is thereby directed to the mask when the film is being inserted in the camera. The mask or controller 7, which may take the form shown in Fig. 5 for use with a colour-band filter 17 when employing lenticular sensitive films, may be enclosed in a box 6 attached as by threading, or by clips, to the leader strip 3 of the sensitive film, which is enclosed in a metal case 2 contained in a cardboard package 1. A recess 21 in the flange of the mask 7 is adapted to engage a lug 22 on the flange of the filter 17 in order to align the cut-out parts of the mask with the filter bands. An arm 18 on the filter engages an aperture in the lens mount 16 to align the filter bands' with the lenticulations of the film in the gate of the camera. The mask may take any of the forms described in Specification 295,995.
Patent GB-225282-A (GB)
Title: Improvements in light projectors
IPC: F21V7/00
Filed: 1923-08-28
Abstract: 225,282. Ryland, H. S. Aug. 28, 1923. Vehicde lamps. - A vehicle lamp or other light projector comprises a concave spherical reflector a, a second concave spherical reflector d having its centre at or about the optical focus c of the first reflector a and with an aperture e at its vertex, a source of light at near and preferably behind the focus c and means, such as a ring f, for securing the reflectors together. A part of the edge of the front reflector may be turned up or removed to throw a portion of the light rays on the ground or in any other direction. One or both the reflectors may be of silvered glass. Specification 200,647 is referred to.
Patent GB-1302105-A (GB)
IPC: G11C17/00
Filed: 1970-05-06
Abstract: 1302105 Read only memory; code conversions TELETYPE CORP 6 May 1970 [7 May 1969] 21771/70 Headings G4A and G4H A memory array (Figs. 1, 2) incorporating FETs has a memory section 18, an X address section 14 and a Y address section 17. A data address appears at inputs I 1 , I 2 , I 3 , I 4 , and is supplied to phase splitters 10, 11, 12, 13 supplying true and false signals to the pair of lines respectively coupled to the output of each splitter. The true and false signals are fed on column conductors to the control electrodes of selected transistors each having a further electrode connected to a row line and arranged so that each combination of bits in the inputs I 1 , I 2  or I 3 , I 4  leaves one row only in each address section not connected to an enabled transistor so that each X and Y binary address signal is converted to a 1 out of 4 signal. During readout a pulse # 2  enables transistors 31-34 and causes capacitors 36-39 to be charged. A pulse at # 3  enables transistors 21-24 and causes capacitors 26-29 to be charged. At the cessation of # 2  only one of capacitors 36-39 remains charged and at the cessation of # 3  only one of capacitors 26-29 remains charged unless the row to which the remaining charged capacitor is connected is coupled to the transistor enabled by the charged capacitor 36, 37, 38 or 39. Thus if the capacitor not discharged by the Y address is not coupled to an enabled transistor in the memory section 18 a "1" is read out at # 4 , otherwise a "0" is read out. In an alternative embodiment (Fig. 5, not shown) the Y address transistors are coupled between adjacent rows and a "1" voltage supply is coupled to the top row. The X address is arranged to enable one of the memory section transistors as described above, the memory address transistors being coupled between adjacent rows. The Y address enables the transistors to couple all pairs of adjacent rows but one. If the enabled memory transistor couples the pair of rows not coupled by the Y address the "1" voltage source charges an output capacitor connected to the lowest row and a "1" is read out, otherwise a "0" is read.
Patent GB-532879-A (GB)
Title: Improvements in or relating to guards for hand-guided cutting and severing apparatus
IPC: B26D7/22
Filed: 1939-07-27
Abstract: 532,879. Machinery guards. BUTLER, Ltd., C., and ORCHARD, W. J. July 27, 1939, No. 21784. [Class 80 (iv)] Relates to guards for hand-guided cutting and severing apparatus of the kind having a rotary knife for cutting fabrics, paper &c. A rotary knife 10 driven by an electric motor 11 is supported in a frame 12 having a base 13 adapted to be moved over the work by a handle 15. The forward part of the base has a ramp 14 to raise the work from the bench. The knife is guarded by a sheet metal segment 17 the curved outer edge of which overlaps the periphery of the knife. The guard segment is pivoted on the axis 18, has a roller 19 at its lower front end and is adapted to be raised by a lever 20 disposed adjacent the handle 15. It is urged towards the work, e.g. by a weight which may be the lever 20. In a modification, a second segment parallel to the first may be disposed on the opposite face of the knife, the curved peripheries of the two segments being joined. The segment 17 may be extended to guard other parts of the knife edge. An aperture 22 in the segment permits of the application of a sharpening device 21. Reference has been directed by the Comptroller to Specification 17809/03, [Class 80].
Patent GB-705096-A (GB)
Title: Improved arrangements for printing from formes covered by elastic skin
IPC: B41B1/18
Filed: 1951-09-19
Abstract: 705,096. Printing surfaces; printer's composing appliances. SCHNELLPRESSENFABRIK AKT.- GES. HEIDELBERG. Sept. 19, 1951 [March 2, 1951], No. 22005/51. Classes 100 (2) and 100 (3) Relief printing; chases.-An arrangement for cylinder printing presses or platen printing presses for printing by a forme covered with an elastic skin held in position by suction comprises a chase adapted to accommodate the forme, the chase being sealed in a airtight manner against the type bed and carrying the skin in an airtight fashion. The chase comprises a centre bar 1 enclosed on both sides by supporting bars 2, 3 attached to the bar 1 by screws. The parts 1-3 are adapted to engage heads 7 of a packing strip 8. The centre bar 1 is also formed with a groove 12 and bores 13 which extend through the bars 1 and 3. The type bed 14 accommodates the chase 1-3 with the formes enclosed therein. The bed 14 is formed with bores 15, 16, 17 connected to a source of suction by means of which a rubber skin 23 is held in position by the edges of the grooves 12. A slight positive pressure is also applied to the space 24 between the packing member 8 and central bar 1 through bores 9, 10, and nipple 11 so as to effect an airtight connection between the chase and the type bed. In a modification, Fig. 5 (not shown), suction may be applied through bores arranged in the chase instead of in the type bed.
Patent GB-1274623-A (GB)
Title: Improvements in and relating to clutches
IPC: F16D23/10
Filed: 1971-04-19
Abstract: 1,274,623. Controlling clutches. ZAHNRADFABRIK FRIEDRICHSHAFEN A.G. 19 April, 1971 [19 March, 1970], No. 22014/71. Headings F2C and F2L. A clutch (e.g. for motor vehicle change speed gears) comprising a splined member 9 axially slidable to selectively engage mating splines 13 of another member (e.g. a gear 12) having the ends of the splines 13, 8 rounded, Fig. 2, is controlled by a servomotor 3 connected by a pressure reducing valve 2 in parallel with a by-pass valve 4 to a fluid pressure source, an electronic device 14, 15, 16 to mechanically detect oscillations due to the rounded spline ends rubbing, being operable when the frequency of oscillation is low to open the by-pass valve and engage the clutch.